Onwards to the First Conditional!

Now, this conditional and the zero (which you just met and hopefully memorized. If not, go back until you do. I can wait. In fact, this ain't gonna progress until you do. Also, get a cup of coffee and take a sip. It's worth it... Done? Alright, lets continue!) are really REALLY similar, yet they're different by some details that Im gonna explain.

 The first conditional is used for real or possible situations. These situations take place if a certain condition is met. It is possible and also very likely that the condition will be fulfilled. 

Its uses can be summarized with this:

• An action in the future will only happen if a certain condition is fulfilled by that time. We don't know for sure whether the condition actually will be fulfilled or not, but the conditions seems rather realistic – so we think it's likely to happen.

In sentences, it's used like this:

If + Simple Present, + Simple Future

 And now, some examples:

1.  If I don't drink coffee, I'll get grumpy. (Which is totally truth, so you all better keep a cup of coffee close if I'm nearby. YOU'VE BEEN WARNED)
2. If I have enough time, I'll watch the classic (If you're from Costa Rica, you know it's "La Liga" vs "Saprissa")
3. If I earn enough money, I'll buy a ps4 (Sadly this sentence sounds more properly in the third conditional)

 Now, if you need any extra explanation (Use the internet you lazybones!) simply read this:

You use this when there are chances of something happening in the future, but you're NOT completely sure

As for now, we're